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CA2047288A1 - Apparatus and method for angle measurement - Google Patents

Apparatus and method for angle measurement

Info

Publication number
CA2047288A1
CA2047288A1 CA2047288A CA2047288A CA2047288A1 CA 2047288 A1 CA2047288 A1 CA 2047288A1 CA 2047288 A CA2047288 A CA 2047288A CA 2047288 A CA2047288 A CA 2047288A CA 2047288 A1 CA2047288 A1 CA 2047288A1
Authority
CA
Canada
Prior art keywords
light
light sensor
stop
plane
output
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA2047288A
Other languages
French (fr)
Other versions
CA2047288C (en
Inventor
Jerry M. Hill
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Snap On Inc
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2047288A1 publication Critical patent/CA2047288A1/en
Application granted granted Critical
Publication of CA2047288C publication Critical patent/CA2047288C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

Apparatus is disclosed which includes two side-by-side planar light sensors. A light stop is spaced from one light sensor in position to stop or shade half of the light sensor surface from a projected light beam when the beam is orthogonal thereto. The other light sensor is completely exposed to the projected light beam. The one light sensor is exposed to more or less of the light beam dependent upon the beam's departure in one direction or the other from orthogonality to the plane of the one light sensor. A ratio of the output from the one light sensor to the output from the other provides beam angle information relative to the plane of the one light sensor.
CA002047288A 1990-07-30 1991-07-17 Apparatus and method for angle measurement Expired - Fee Related CA2047288C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/559,790 1990-07-30
US07/559,790 US5264910A (en) 1990-07-30 1990-07-30 Apparatus and method for angle measurement

Publications (2)

Publication Number Publication Date
CA2047288A1 true CA2047288A1 (en) 1992-01-31
CA2047288C CA2047288C (en) 1998-11-24

Family

ID=24235036

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002047288A Expired - Fee Related CA2047288C (en) 1990-07-30 1991-07-17 Apparatus and method for angle measurement

Country Status (7)

Country Link
US (1) US5264910A (en)
JP (1) JP2704195B2 (en)
AU (1) AU637230B2 (en)
CA (1) CA2047288C (en)
DE (1) DE4122707C2 (en)
FR (1) FR2665256B1 (en)
IT (1) IT1251127B (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3023893B2 (en) * 1990-08-01 2000-03-21 キヤノン株式会社 Angle shift detection method, apparatus therefor, and exposure apparatus
FR2726903B1 (en) * 1994-11-10 1996-12-06 Thomson Csf INTEGRATED ECARTOMETER
US6043873A (en) * 1997-01-10 2000-03-28 Advanced Optical Technologies, Llc Position tracking system
US5757478A (en) * 1996-06-03 1998-05-26 Ma; Chris Chen-Hsing Remote position sensing apparatus and method
DE19838460A1 (en) * 1998-08-25 2000-03-09 Daimler Chrysler Ag Device for determining the angle of incidence of a light source, in particular the sun
NL1013965C2 (en) * 1999-12-27 2001-07-03 Messpro Holding B V Optoelectronic sensor and direction positioning device.
DE10052424C1 (en) * 2000-10-23 2002-05-02 Astrium Gmbh Arrangement for determining the position of a light source
DE10218160C1 (en) * 2002-04-23 2003-12-24 Elmos Semiconductor Ag Device for determining the angle of incidence of radiation on a radiation incidence surface
US7466002B2 (en) * 2006-06-19 2008-12-16 Mitutoyo Corporation Incident light angle detector for light sensitive integrated circuit
JP4485567B2 (en) * 2007-11-13 2010-06-23 シャープ株式会社 Optical angle detection device, manufacturing method thereof, and electronic apparatus using the same
US9285459B2 (en) 2008-05-09 2016-03-15 Analog Devices, Inc. Method of locating an object in 3D
EP2700973B1 (en) * 2008-09-20 2020-10-21 Baanto International Ltd. Sensors, systems and methods for position sensing
US9746544B2 (en) 2008-12-03 2017-08-29 Analog Devices, Inc. Position measurement systems using position sensitive detectors
EP2434945B1 (en) 2009-05-27 2018-12-19 Analog Devices, Inc. Multiuse optical sensor
DE102009029397B4 (en) * 2009-09-11 2014-09-25 RUHR-UNIVERSITäT BOCHUM Device for measuring the angle of incidence of a radiation
US9702690B2 (en) * 2011-12-19 2017-07-11 Analog Devices, Inc. Lens-less optical position measuring sensor
US9116046B2 (en) * 2013-03-15 2015-08-25 Infineon Technologies Austria Ag Device and method for determining a direction from a surface of one or more photodetector elements of an integrated circuit to a source providing electromagnetic waves and method for manufacturing an device

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4180326A (en) * 1977-09-19 1979-12-25 Fmc Corporation Angle measuring apparatus
US4154531A (en) * 1978-04-17 1979-05-15 Fmc Corporation Time base swept-beam wheel aligning system
US4319838A (en) * 1979-10-01 1982-03-16 Hunter Engineering Company Vehicle wheel alignment apparatus
US4410270A (en) * 1981-04-20 1983-10-18 Litton Systems, Inc. Angle position transducer
JPS581110A (en) * 1981-06-26 1983-01-06 Takashi Mori Sunlight direction sensor
US4523844A (en) * 1982-09-16 1985-06-18 Fmc Corporation Determining toe of rear and front vehicle wheels
US4594789A (en) * 1985-04-22 1986-06-17 Bear Automotive Service Equipment Company Wheel alignment system
US4804832A (en) * 1985-12-10 1989-02-14 Santa Barbara Research Center Two directional angle of arrival system
DE3640946C1 (en) * 1986-11-29 1988-04-07 Eltro Gmbh Dice-shaped warning device for laser radiation

Also Published As

Publication number Publication date
ITMI912085A1 (en) 1992-01-31
ITMI912085A0 (en) 1991-07-26
DE4122707C2 (en) 1996-07-11
DE4122707A1 (en) 1992-02-06
JP2704195B2 (en) 1998-01-26
IT1251127B (en) 1995-05-04
CA2047288C (en) 1998-11-24
US5264910A (en) 1993-11-23
FR2665256B1 (en) 1995-03-10
AU7717191A (en) 1992-02-06
JPH04262202A (en) 1992-09-17
AU637230B2 (en) 1993-05-20
FR2665256A1 (en) 1992-01-31

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Legal Events

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EEER Examination request
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